What script host are you using? Some things broke in GreaseMonkey a while back (around November), so people are mostly only using TamperMonkey or ViolentMonkey these days.
Beyond that, check for errors on the Javascript console (press F12 and click on the Console tab).
Which browser are you using? Timeline is still working for me on Chrome/Tampermonkey. And I’ve never seen a ‘permission denied’ error on accessing a property… so strange.
I have a very similar situation; although I dont know how to check for errors. Around yesterday? was when it broke, as has the re-order script and maybe a couple others?
Well… no luck. Firefox + ViolentMonkey + Ultimate Timeline is working fine for me.
Maybe try clearing out settings?
In the Javascript console (Press F12 and click the Console tab), paste the following command and press enter, then refresh the page:
I’ve noticed a few broken scripts on Firefox + Violentmonkey in the last few days as well. Ultimate timeline I could get to load sometimes but not every time. I assumed it was my connection at the time. This is on my tablet, a Samsung Galaxy Tab E.
Timeline shouldn’t even start displaying until the page is fully loaded.
And once it’s fully loaded, it should at least display the “Fetching API key” or “Loading Review Data…”
And are you also seeing errors on the Javascript console?
Looks like remote debugging may be the only option anymore, which doesn’t help at all here because I’m not looking at the code! If I can figure anything out, though, I’ll let you know for sure.